1231430352152 has 64 divisors (see below), whose sum is σ = 3100104403200. Its totient is φ = 442872051840.

The previous prime is 1231430352127. The next prime is 1231430352169. The reversal of 1231430352152 is 2512530341321.

It is a super-2 number, since 2×1231430352152² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76879502 + ... + 76895517.

It is an arithmetic number, because the mean of its divisors is an integer number (48439131300).

Almost surely, 2^{1231430352152} is an apocalyptic number.

It is an amenable number.

1231430352152 is an abundant number, since it is smaller than the sum of its proper divisors (1868674051048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231430352152 is a wasteful number, since it uses less digits than its factorization.

1231430352152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153775056 (or 153775052 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 1231430352152 its reverse (2512530341321), we get a palindrome (3743960693473).

The spelling of 1231430352152 in words is "one trillion, two hundred thirty-one billion, four hundred thirty million, three hundred fifty-two thousand, one hundred fifty-two".